RM-ECi - ebm-papst, EC Fan Speed Controller, 0-10V Manual Control, Infinitely Variable, 10V DC Powered

The ebm-papst RM-ECi is a manual 0-10V EC fan speed controller designed for use with the full range of ebm-papst EC fans. Powered directly by the 10 VDC output from the EC motor, no separate power supply is required; it delivers infinitely variable speed control from 0% to 100% via a stepless rotary knob.

Ideal for AHUs, fan coil units, and ventilation systems where straightforward manual fan speed adjustment is needed, the RM-ECi can control multiple fans simultaneously, all running at the same speed.

The robust IP54-rated enclosure (65 × 65 × 80 mm) accepts cable entries via 4 × M16 or M20 knockouts and mounts easily with 4 mm fixing holes, making installation quick and clean.

Key features:

• Infinitely variable 0–100% speed control via stepless knob
• 10 VDC motor-powered, no external supply needed
• Controls multiple fans at the same speed
• IP54 rated, max ambient temperature 50°C
• 4 × M16/M20 cable entries, 4 mm mounting holes
• Dimensions: 65 × 65 × 80 mm 

Typical Applications:

• AHU and FCU fan speed control where no BMS signal is present
• Standalone ventilation in plant rooms, server rooms, and warehouses
• Car park and commercial building background ventilation
• Multi-fan arrays running at a shared fixed speed
• Commissioning override and BMS fault-finding
• Panel cooling and process ventilation with ebm-papst EC motors